My boys 94 Z is stumbling all over itself on accel. Have not checked for codes and no lights showing on dash for check engine. Car has 150000 on the clock. He has owned the car since 141000. Do not know when the plugs, wires, and or opti have been replaced in a while. The car did it once before and than quit. Started doing it again today. Any ideas or help would be great. Thanks
